In January, This American Life aired a segment in which reporter Ben Calhoun went to a few stores and tried asking for a "good guy discount" at the register. Here's how Calhoun explained it: A friend of his named Sonari Glinton was interviewing a negotiations expert from Columbia University Business school who described a technique where you ask at the register, "Can I get a good guy discount on that? You're a good guy, I'm a good guy—come on, just, you know, a good guy discount."